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US 4,655,701 AGranted
Granulating apparatus
AssigneeFuji Paudal Kabushiki Kaisha
InventorNobuharu Moriya
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AssigneeFuji Paudal Kabushiki Kaisha
InventorNobuharu Moriya
Estimating the term…
A granulating apparatus particularly adapted for advanced ceramic materials having a granulation vessel with a cylindrical main body in which are coaxially-mounted rotatably an annular cage-like stirring rotor having peripheral stirring blades and a central impulse rotor having impulse blades and pins. The stirring blades are mounted in diverging pairs relative to their rotational direction to channel charge material axially centrally within the container, while the impulse blades are V-shaped convergingly in their rotational direction to impel charge material both radially and axially outwardly within the vessel, for enhanced charge material circulation. Nozzles mounted on the end cover of the vessel inject agglomerating liquid axially into the open granulation area between the rotors for direct impingement of liquid essentially only onto the charge material. The interior wall surface of the container, the stirring blades, and the impulse blades and pins have working surfaces formed of suitable wear resistant, non-contaminating material to facilitate use of the apparatus for advanced ceramic granulation applications.
Wet-type granulating apparatus for forming powder materials into granules thereof utilizing an agglomerating liquid, said apparatus comprising a granulation vessel having a material charge port and a granule discharge port, an annular stirring rotor rotatably disposed within said vessel for circulating charge material within said vessel, said stirring rotor including a plurality of stirring members arranged thereabout and configured to direct said charge material axially inwardly of said stirring rotor, an impulse rotor rotatably disposed within said vessel within said stirring rotor axially parallel therewith for dispersing charge material outwardly from said impulse rotor within said vessel, said impulse rotor including a plurality of impulse members arranged thereabout and configured to disperse said charge material both radially and axially outwardly from said impulse rotor, said stirring rotor and said impulse rotor defining an annular granulation work area radially therebetween within said vessel and said impulse rotor and said stirring rotor being cooperative for producing both axial and radial circulation of said charge material to enhance the dispersion thereof within said annular granulation work area, and means for emitting agglomerating liquid into said annular granulation work area in a generally axial direction relative to said stirring rotor and said impulse rotor for impingement of emitted agglomerating liquid directly and essentially only on charge material within said vessel.
Granulating apparatus for forming granules of a charge material, said apparatus comprising a granulation vessel having a material charge port and a granule discharge port, an annular stirring rotor rotatably disposed within said vessel for circulating charge material within said vessel, and an impulse rotor rotatably disposed within said vessel within said stirring rotor axially parallel therewith for dispersing charge material outwardly from said impulse rotor within said vessel, said impulse rotor having a plurality of impulse members arranged thereabout and configured to disperse said charge material both radially and axially outwardly from said impulse rotor and said stirring rotor having a plurality of stirring members arranged thereabout and configured to direct said charge material axially inwardly of said stirring rotor, said impulse rotor and said stirring rotor being cooperative for producing both axial and radial circulation of said charge material to enhance the dispersion thereof within said vessel.
Granulating apparatus particularly adapted for forming granules of advanced ceramic materials and other valuable charge materials, said apparatus comprising a granulation vessel having a material charge port and a granule discharge port, said vessel having an interior wall surface of a material which is wear resistant and non-contaminating to said charge materials, an annular stirring rotor rotatably disposed within said vessel for circulating charge material within said vessel, said stirring rotor having peripheral stirring members having working surfaces formed of a material which is wear resistant and non-contaminating to said charge materials, and an impulse rotor rotatably disposed within said vessel within said stirring rotor axially parallel therewith for dispersing charge material outwardly from said impulse rotor within said vessel, said impulse rotor having a plurality of impulse members for turbulently impelling charge material outwardly from said impulse rotor for enhanced dispersion of charge material within said vessel, said impulse members having impulse working surfaces of advanced ceramic material which is wear resistant and non-contaminating to said charge materials.
Dependencies are inferred from the claim text.